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3742 Seagrape Street, Big Pine Key, Florida 33043

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Active For Sale
$5,390,000
  • Beds 3
  • Baths 3
  • Sq Ft 4,687 Sqft
  • Visits: 1 in 452 days

Description

Escape to “The Castle”, a luxurious gated Gulf-front estate spanning 1.14 acres on Big Pine Key. Built in 2014 with poured concrete, impact windows/doors, elevator, and generator, this 4,600+ sq. ft. masterpiece offers 3 bedrooms, 3 baths, and breathtaking Gulf views. Boaters enjoy 235’ of dockage: 140’ protected canal dock with lift, ramp, and slip, plus 95’ open-water pier dock with lift and seawall. Inside, a chef’s kitchen with 10.5’ island, dual sinks, Jenn-Air gas range, and wood cabinetry flows to a grand family room, theater, and rooftop deck. The top-floor primary suite boasts water views, office, lounge, spa bath, and custom closet. Outside, a resort-style pool with spa, heater/chiller, and LED lighting completes this rare Florida Keys retreat.

Features

  • Swimming Pool: Heated, In Ground, Concrete
  • Heating System: Central
  • Cooling System: Central Air
  • Patio: Balcony, Open
  • Parking: Driveway, Circular Driveway, Covered, Guest, Paver Block, Golf Cart Garage, Attached Carport, Carport

Appliances

  • Appliances: Dishwasher, Microwave, Electric Water Heater, Disposal

Address Map

  • Country: US
  • State: FL
  • County: Monroe
  • City: Big Pine Key
  • Subdivision: PORT PINE HEIGHTS 2ND ADD
  • Zipcode: 33043
  • Street: Seagrape
  • Street Number: 3742
  • Street Suffix: Street
  • Floor Number: 0
  • Longitude: W82° 35' 57.8''
  • Latitude: N24° 43' 23.3''
  • Directions: From US-1, right on Key Deer Blvd all the way to Kyle Blvd, left onto Kyle, left onto Sea Grape Street. Property is on right side with gated entry.
  • MLS Area: 5940 - Other Florida County

MLS Addon

  • Association Amenities: No
  • Association Fee: $0
  • Carport Spaces: 01/01/1970
  • Close Price: $0
  • Elementary School: Sugarloaf
  • Exterior Features: Balcony, Lighting, Outdoor Living Area
  • Flooring: Tile
  • Garage Spaces: 4
  • High School: Key West
  • Insurance Expense: $0
  • Interior Features: Upper Level Primary, Closet Cabinetry, Elevator, Kitchen Island, Built-in Features, Separate Shower, Main Level Primary, Bathtub, Soaking Tub, Multiple En Suite Bathrooms
  • Levels: Two
  • Lot Features: 1-2 Acres
  • Lot Size Dimensions: 49760
  • Middle Or Junior School: Marathon
  • New Taxes Expense: $0
  • Spa Features: Gunite
  • Stories: 2
  • Stories Total: 2
  • Tax Annual Amount: $28,079
  • Utilities: Cable Available
  • Zoning: SF

Location

Listing Updated: 2026-07-19 18:11:57

  • Property Type : Single Family
  • Property Sub Type : Single Family Residence
  • Listing Type : For Sale
  • Listing ID : A11877495
  • Price : $5,390,000
  • View : Bay, Water
  • Bedrooms : 3
  • Bathrooms : 3
  • Full Bathrooms : 3
  • Half Bathrooms : 0
  • Square Footage : 4,687 Sqft
  • Year Built : 2014
  • Lot Area : 0.40 Acre
  • Listing Status : Active
  • Days On Market : 451
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